Bloghttp://batland.de/v4.1/index.php/batblog1/feed/atom/batblog1/batblog2019-09-15T10:35:40+00:00Joomla! - Open Source Content ManagementNew Photos - Life in Macro2014-04-15T11:41:15+00:002014-04-15T11:41:15+00:00http://batland.de/v4.1/index.php/batblog1/item/new-photos-life-in-macroDennis<div class="element element-textarea first last">
<div><p>Some new<a href="http://www.batland.de/v4.1/index.php/bat-s-photos/event/Life%20in%20Macro"> macro photos</a> - shot with a none macro lense: </p>
<p><a href="http://www.batland.de/v4.1/index.php/bat-s-photos/singleimage/Life%20in%20Macro/IMG_1035-jpg/" target="_blank"><img src="http://www.batland.de/v4.1/components/com_eventgallery/helpers/image.php?option=com_eventgallery&amp;mode=full&amp;view=resizeimage&amp;folder=Life%20in%20Macro&amp;file=IMG_1035.jpg" alt="" width="1440" height="960" /></a></p>
<p> </p>
<p><a href="http://www.batland.de/v4.1/index.php/bat-s-photos/singleimage/Life%20in%20Macro/IMG_1018-jpg/"><img src="http://www.batland.de/v4.1/components/com_eventgallery/helpers/image.php?option=com_eventgallery&amp;mode=full&amp;view=resizeimage&amp;folder=Life%20in%20Macro&amp;file=IMG_1018.jpg" alt="" width="961" height="1440" /></a></p></div></div><div class="element element-textarea first last">
<div><p>Some new<a href="http://www.batland.de/v4.1/index.php/bat-s-photos/event/Life%20in%20Macro"> macro photos</a> - shot with a none macro lense: </p>
<p><a href="http://www.batland.de/v4.1/index.php/bat-s-photos/singleimage/Life%20in%20Macro/IMG_1035-jpg/" target="_blank"><img src="http://www.batland.de/v4.1/components/com_eventgallery/helpers/image.php?option=com_eventgallery&amp;mode=full&amp;view=resizeimage&amp;folder=Life%20in%20Macro&amp;file=IMG_1035.jpg" alt="" width="1440" height="960" /></a></p>
<p> </p>
<p><a href="http://www.batland.de/v4.1/index.php/bat-s-photos/singleimage/Life%20in%20Macro/IMG_1018-jpg/"><img src="http://www.batland.de/v4.1/components/com_eventgallery/helpers/image.php?option=com_eventgallery&amp;mode=full&amp;view=resizeimage&amp;folder=Life%20in%20Macro&amp;file=IMG_1018.jpg" alt="" width="961" height="1440" /></a></p></div></div>How to run Autopsy on Linux2014-02-09T18:23:39+00:002014-02-09T18:23:39+00:00http://batland.de/v4.1/index.php/forensics1/item/how-to-run-autopsy-on-linuxSuper User<div class="element element-textarea first last">
<div><p class="MsoNormal">Since version 3 of Autopsy which is a graphical front end to the well-known sleuth kit Linux binaries are not provided by the project team due to packaging issues. Unfortunately, I have not found one site for RedHat distributions such as Fedora or Centos that provide Autopsy packages.</p>
<p class="MsoNormal"><span lang="EN-US">Therefore, I have digged through the documentation and figured out how to get Autopsy up and running on Linux.</span></p>
<p class="MsoNormal"><span lang="EN-US">1) Required packages</span></p>
<pre class="brush: bash">yum install git bzip2-devel uuid-devel.x86_64 libuuid-devel.x86_64 fuse-devel.x86_64 zlib-devel rpm-build openssl-devel python-devel libstdc++-devel libstdc++ ant gcc-c++</pre>
<p class="MsoNormal"><span lang="EN-US">2) Java </span></p>
<p class="MsoNormal"><span lang="EN-US">Java is needed. As Autopsy requires JavaFX, OpenJDK will not work. Therefore, Oracle Java version 1.7 needs to be installed. I use Fedy – formarly called Fedora Utils – (</span><a href="http://satya164.github.io/fedy/"><span lang="EN-US">http://satya164.github.io/fedy/</span></a><span lang="EN-US">) to install Oracle java or download it via <a href="http://www.oracle.com/technetwork/java/javase/downloads/jdk7-downloads-1880260.html">http://www.oracle.com/technetwork/java/javase/downloads/jdk7-downloads-1880260.html</a>.</span></p>
<p class="MsoNormal"><span lang="EN-US">2) libewf </span></p>
<p class="MsoNormal"><span lang="EN-US">Libewf is required for Autopsy and its dependency Sleuth Kit. At the time of writing SkeuthKit 4.1.3 was just released. Version 4.1.3 requires libewf &gt;= 20131230 whereas forensic tools repository of NIST (<a href="http://www.cert.org/forensics/repository/">http://www.cert.org/forensics/repository/</a>) only provides version 20131210 as of February 2014. Therefore, libewf is built from the sources. The project homegae of libewf is <a href="https://code.google.com/p/libewf/">https://code.google.com/p/libewf/</a> but the source code is not hosted via google code. You need to use the ‘Downloads’ links on the left pane to get the source code. After unpacking run</span></p>
<pre class="brush: bash">./configure
make
make install
</pre>
<p class="MsoNormal"><span lang="EN-US">If you prefer to build your own rpms so that everything is managed by your package manager just run </span></p>
<pre class="brush: bash">rpmbuild –ta libewf-&lt;version&gt;.tar.gz</pre>
<p class="MsoNormal"><span lang="EN-US">You’ll find the freshly build rpm files in $HOME/rpm/build. libewf incl. devel, python and tools are required to be installed.</span></p>
<p class="MsoNormal"><span lang="EN-US">In the future a regular </span></p>
<pre class="brush: bash">yum install libewf </pre>
<p class="MsoNormal"><span lang="EN-US">will do the trick as soon as the forensic tools repository of NIST has been updated. </span></p>
<p class="MsoNormal"><span lang="EN-US">3) TSK / SleuthKit </span></p>
<p class="MsoNormal"><span lang="EN-US">The SleuthKit package provided in the forensic tools repository of NIST can’t be used because the java bindings are missing. Therefore, SleuthKit needs to be built from source. After obtaining the sources (<a href="http://www.sleuthkit.org/sleuthkit/download.php">http://www.sleuthkit.org/sleuthkit/download.php</a>) and unpacking the archive, the following commands need to be run. </span></p>
<pre class="brush: bash">./configure
make </pre>
<p class="MsoNormal"><span lang="EN-US"> ‘<em>make install</em>’ is not necessary as only Autopsy will rely on the freshly build binaries and the environment variable TSK_HOME will point Autopsy to them. </span></p>
<pre class="brush: bash">export TSK_HOME=/home/dennis/forensics/sleuthkit-4.1.3/</pre>
<p class="MsoNormal"><span lang="EN-US">Check that the java bindings have been compiled as well. You need to find the following lines in the output of make: </span></p>
<pre class="brush: bash">dist-do:
[jar] Building jar: /home/dennis/forensics/sleuthkit-4.1.3/bindings/java/dist/Tsk_DataModel.jar</pre>
<p class="MsoNormal"><span lang="EN-US">Or with chan ge into the directory bindings/java and run</span> </p>
<pre class="brush: bash">ant</pre>
<p class="MsoNormal"><span lang="EN-US">4) Autopsy </span></p>
<p class="MsoNormal"><span lang="EN-US">Now Autopsy can be built by retrieving the Autopsy sources via git. </span></p>
<pre class="brush: bash">git clone https://github.com/sleuthkit/autopsy</pre>
<p class="MsoNormal"><span lang="EN-US">Changing into the source directory and running</span></p>
<pre class="brush: bash">ant build</pre>
<p class="MsoNormal"><span lang="EN-US">will download all (java) dependencies and compile Autopsy. Autopsy can be started via the following command </span></p>
<pre class="brush: bash">ant run </pre>
<p class="MsoNormal"><span lang="EN-US">Please take in mind that the environment variable TSK_HOME needs to be set correctly for Autopsy to run. Therefore, I have generated this really simple three line bash script. </span></p>
<pre class="brush: bash">export TSK_HOME=/home/dennis/Autopsy/sleuthkit/
ant run</pre>
<p class="MsoNormal"><span lang="EN-US">And this is it: </span></p>
<p class="MsoNormal"><a href="http://batland.de/v4.1/images/Screenshots/Screenshot-Autopsy.png" target="_blank"><img src="http://batland.de/v4.1/images/Screenshots/Screenshot-Autopsy.png" alt="" width="800" /></a></p>
<p class="MsoNormal"><span lang="EN-US">I’ll test run Autopsy on Linux during the next weekend. I have made some good and some not so good experiences with Autopsy on Windows during the last couple of month. I’ll try to test if (almost) all features work like expected and report back. </span></p></div></div><div class="element element-textarea first last">
<div><p class="MsoNormal">Since version 3 of Autopsy which is a graphical front end to the well-known sleuth kit Linux binaries are not provided by the project team due to packaging issues. Unfortunately, I have not found one site for RedHat distributions such as Fedora or Centos that provide Autopsy packages.</p>
<p class="MsoNormal"><span lang="EN-US">Therefore, I have digged through the documentation and figured out how to get Autopsy up and running on Linux.</span></p>
<p class="MsoNormal"><span lang="EN-US">1) Required packages</span></p>
<pre class="brush: bash">yum install git bzip2-devel uuid-devel.x86_64 libuuid-devel.x86_64 fuse-devel.x86_64 zlib-devel rpm-build openssl-devel python-devel libstdc++-devel libstdc++ ant gcc-c++</pre>
<p class="MsoNormal"><span lang="EN-US">2) Java </span></p>
<p class="MsoNormal"><span lang="EN-US">Java is needed. As Autopsy requires JavaFX, OpenJDK will not work. Therefore, Oracle Java version 1.7 needs to be installed. I use Fedy – formarly called Fedora Utils – (</span><a href="http://satya164.github.io/fedy/"><span lang="EN-US">http://satya164.github.io/fedy/</span></a><span lang="EN-US">) to install Oracle java or download it via <a href="http://www.oracle.com/technetwork/java/javase/downloads/jdk7-downloads-1880260.html">http://www.oracle.com/technetwork/java/javase/downloads/jdk7-downloads-1880260.html</a>.</span></p>
<p class="MsoNormal"><span lang="EN-US">2) libewf </span></p>
<p class="MsoNormal"><span lang="EN-US">Libewf is required for Autopsy and its dependency Sleuth Kit. At the time of writing SkeuthKit 4.1.3 was just released. Version 4.1.3 requires libewf &gt;= 20131230 whereas forensic tools repository of NIST (<a href="http://www.cert.org/forensics/repository/">http://www.cert.org/forensics/repository/</a>) only provides version 20131210 as of February 2014. Therefore, libewf is built from the sources. The project homegae of libewf is <a href="https://code.google.com/p/libewf/">https://code.google.com/p/libewf/</a> but the source code is not hosted via google code. You need to use the ‘Downloads’ links on the left pane to get the source code. After unpacking run</span></p>
<pre class="brush: bash">./configure
make
make install
</pre>
<p class="MsoNormal"><span lang="EN-US">If you prefer to build your own rpms so that everything is managed by your package manager just run </span></p>
<pre class="brush: bash">rpmbuild –ta libewf-&lt;version&gt;.tar.gz</pre>
<p class="MsoNormal"><span lang="EN-US">You’ll find the freshly build rpm files in $HOME/rpm/build. libewf incl. devel, python and tools are required to be installed.</span></p>
<p class="MsoNormal"><span lang="EN-US">In the future a regular </span></p>
<pre class="brush: bash">yum install libewf </pre>
<p class="MsoNormal"><span lang="EN-US">will do the trick as soon as the forensic tools repository of NIST has been updated. </span></p>
<p class="MsoNormal"><span lang="EN-US">3) TSK / SleuthKit </span></p>
<p class="MsoNormal"><span lang="EN-US">The SleuthKit package provided in the forensic tools repository of NIST can’t be used because the java bindings are missing. Therefore, SleuthKit needs to be built from source. After obtaining the sources (<a href="http://www.sleuthkit.org/sleuthkit/download.php">http://www.sleuthkit.org/sleuthkit/download.php</a>) and unpacking the archive, the following commands need to be run. </span></p>
<pre class="brush: bash">./configure
make </pre>
<p class="MsoNormal"><span lang="EN-US"> ‘<em>make install</em>’ is not necessary as only Autopsy will rely on the freshly build binaries and the environment variable TSK_HOME will point Autopsy to them. </span></p>
<pre class="brush: bash">export TSK_HOME=/home/dennis/forensics/sleuthkit-4.1.3/</pre>
<p class="MsoNormal"><span lang="EN-US">Check that the java bindings have been compiled as well. You need to find the following lines in the output of make: </span></p>
<pre class="brush: bash">dist-do:
[jar] Building jar: /home/dennis/forensics/sleuthkit-4.1.3/bindings/java/dist/Tsk_DataModel.jar</pre>
<p class="MsoNormal"><span lang="EN-US">Or with chan ge into the directory bindings/java and run</span> </p>
<pre class="brush: bash">ant</pre>
<p class="MsoNormal"><span lang="EN-US">4) Autopsy </span></p>
<p class="MsoNormal"><span lang="EN-US">Now Autopsy can be built by retrieving the Autopsy sources via git. </span></p>
<pre class="brush: bash">git clone https://github.com/sleuthkit/autopsy</pre>
<p class="MsoNormal"><span lang="EN-US">Changing into the source directory and running</span></p>
<pre class="brush: bash">ant build</pre>
<p class="MsoNormal"><span lang="EN-US">will download all (java) dependencies and compile Autopsy. Autopsy can be started via the following command </span></p>
<pre class="brush: bash">ant run </pre>
<p class="MsoNormal"><span lang="EN-US">Please take in mind that the environment variable TSK_HOME needs to be set correctly for Autopsy to run. Therefore, I have generated this really simple three line bash script. </span></p>
<pre class="brush: bash">export TSK_HOME=/home/dennis/Autopsy/sleuthkit/
ant run</pre>
<p class="MsoNormal"><span lang="EN-US">And this is it: </span></p>
<p class="MsoNormal"><a href="http://batland.de/v4.1/images/Screenshots/Screenshot-Autopsy.png" target="_blank"><img src="http://batland.de/v4.1/images/Screenshots/Screenshot-Autopsy.png" alt="" width="800" /></a></p>
<p class="MsoNormal"><span lang="EN-US">I’ll test run Autopsy on Linux during the next weekend. I have made some good and some not so good experiences with Autopsy on Windows during the last couple of month. I’ll try to test if (almost) all features work like expected and report back. </span></p></div></div>New Photos - Macro2014-02-07T17:35:19+00:002014-02-07T17:35:19+00:00http://batland.de/v4.1/index.php/batblog1/item/new-photos-macroSuper User<div class="element element-textarea first last">
<div><p>Some macro shoots done with a standard 24-70 2.8 Lense (<a href="http://batland.de/v4.1/index.php/bat-s-photos/event/General">All random photos</a> &amp; <a href="http://batland.de/v4.1/index.php/bat-s-photos/event/Nature">Nature</a>)</p>
<p><a href="http://batland.de/v4.1/index.php/bat-s-photos/singleimage/General/IMG_0678-JPG/"><img src="http://www.batland.de/v4.1/components/com_eventgallery/helpers/image.php?option=com_eventgallery&amp;mode=full&amp;view=resizeimage&amp;folder=General&amp;file=IMG_0678.JPG" alt="" width="1440" height="960" /></a></p>
<p><a href="http://batland.de/v4.1/index.php/bat-s-photos/singleimage/Nature/IMG_0289-JPG/"><img src="http://batland.de/v4.1/components/com_eventgallery/helpers/image.php?option=com_eventgallery&amp;mode=full&amp;view=resizeimage&amp;folder=Nature&amp;file=IMG_0289.JPG" alt="" width="1440" height="960" /></a></p>
<p> </p>
<p> </p></div></div><div class="element element-textarea first last">
<div><p>Some macro shoots done with a standard 24-70 2.8 Lense (<a href="http://batland.de/v4.1/index.php/bat-s-photos/event/General">All random photos</a> &amp; <a href="http://batland.de/v4.1/index.php/bat-s-photos/event/Nature">Nature</a>)</p>
<p><a href="http://batland.de/v4.1/index.php/bat-s-photos/singleimage/General/IMG_0678-JPG/"><img src="http://www.batland.de/v4.1/components/com_eventgallery/helpers/image.php?option=com_eventgallery&amp;mode=full&amp;view=resizeimage&amp;folder=General&amp;file=IMG_0678.JPG" alt="" width="1440" height="960" /></a></p>
<p><a href="http://batland.de/v4.1/index.php/bat-s-photos/singleimage/Nature/IMG_0289-JPG/"><img src="http://batland.de/v4.1/components/com_eventgallery/helpers/image.php?option=com_eventgallery&amp;mode=full&amp;view=resizeimage&amp;folder=Nature&amp;file=IMG_0289.JPG" alt="" width="1440" height="960" /></a></p>
<p> </p>
<p> </p></div></div>Version4 is online 2014-02-07T00:00:00+00:002014-02-07T00:00:00+00:00http://batland.de/v4.1/index.php/batblog1/item/version4-is-onlineSuper User<div class="element element-textarea first last">
<div><p class="MsoNormal"><span lang="EN-US">Dear all, </span></p>
<p class="MsoNormal"><span lang="EN-US">Batland version 3 has been abandoned for over a year now. As I try to reanimate this site and the CMS needed an update anyways, I have put some work into the CMS and layout. You’ll see some general blog posts about IT and my photos in the blog section. I’ll try to blog more about my work in the Forensic section. Here you’re going to find articles about tools, methods and IT forensic related news. </span></p>
<p class="MsoNormal"><span lang="EN-US">I hope you enjoy your stay.</span></p>
<p> </p>
<p class="MsoNormal"><span lang="EN-US">- Dennis</span></p></div></div><div class="element element-textarea first last">
<div><p class="MsoNormal"><span lang="EN-US">Dear all, </span></p>
<p class="MsoNormal"><span lang="EN-US">Batland version 3 has been abandoned for over a year now. As I try to reanimate this site and the CMS needed an update anyways, I have put some work into the CMS and layout. You’ll see some general blog posts about IT and my photos in the blog section. I’ll try to blog more about my work in the Forensic section. Here you’re going to find articles about tools, methods and IT forensic related news. </span></p>
<p class="MsoNormal"><span lang="EN-US">I hope you enjoy your stay.</span></p>
<p> </p>
<p class="MsoNormal"><span lang="EN-US">- Dennis</span></p></div></div>Half-Life 2 on Fedora 19: Missing texture and no sound 2014-02-06T19:35:19+00:002014-02-06T19:35:19+00:00http://batland.de/v4.1/index.php/batblog1/item/half-life-2-on-fedora-19-missing-texture-and-no-soundSuper User<div class="element element-textarea first last">
<div><p style="margin-bottom: 0in;"><span style="line-height: 1.3em;">Every 12 to 24 month I have the sudden desire to play a video game and today was one of these days. As I am back on Linux with Windows only running in a virtual machine, I fired up Google to get me up to speed regarding gaming on Linux.</span></p>
<p style="margin-bottom: 0in;">Of course, I stumbled across Steam for Linux and directly installed it because I thought this will be pain free - I still remember my days running SuSE back in 2002 trying to get <em>Jagged Alliance 2</em> to run.</p>
<pre class="brush: bash"> cd /etc/yum.repos.d/
wget http://spot.fedorapeople.org/steam/steam.repo
yum install steam
</pre>
<p style="margin-bottom: 0in;">After these three commands I fired up steam and directly purchased Half Life 2 for 8 € - I have learned in life to not spend much money on games because my gaming desire normally ceases after 2 hours. Downloading 2 GB and automatic installation of Half Life 2 being successful I was able to start the game. But directly in the main menu I noticed that everything was rendered without any textures. On a side note: I can just advise to start steam from a console so that you get all the Debug / Developer output for digging around.</p>
<p style="margin-bottom: 0in;">I figured out that the hardware decompression of the textures did not work and that I needed S3TC with DRI drives which is provided by the package libtxc_dxtn.</p>
<p style="margin-bottom: 0in;"> </p>
<pre class="brush: bash"> rpm -qa | grep libtxc
yum install libtxc_dxtn.i686 libtxc_dxtn.x86_64
</pre>
<p style="margin-bottom: 0in;"> </p>
<p style="margin-bottom: 0in;">Line one checks if the package has already been installed and the second line installs the 32- and 64-Bit version because I am not sure if Half Life / steam is 32- or 64 Bit .</p>
<p style="margin-bottom: 0in;">Starting Half Life 2 again proofed my theory and I had polygons with textures.</p>
<p style="margin-bottom: 0in;">When starting the actual game, I noticed the missing sounds &amp; music. Back to digging in the logs, gave the following hints:</p>
<p style="margin-bottom: 0in;"> </p>
<pre class="brush: bash">Warning: MP3 decoder has failed to start. Most likely SELinux is disabling JITing?
SDLAUDIO: SDL_InitSubSystem(SDL_INIT_AUDIO) failed:
maxplayers set to 1
</pre>
<p style="margin-bottom: 0in;"> </p>
<p style="margin-bottom: 0in;">Okay, line 1 maybe a good hint. Before, re-configuring SELinux and crawling through SELinux logs, I deactivated SELinux completely for test purposes by changing the line in <em>/etc/selinux/config</em> from</p>
<p style="margin-bottom: 0in;"><em> SELINUX=enforcing</em></p>
<p style="margin-bottom: 0in;">to</p>
<p style="margin-bottom: 0in;"><em> SELINUX=disabled</em></p>
<p style="margin-bottom: 0in;">and after a reboot I could hear music in Half Life 2. As SELinux serves an important purpose, I activated it again and reboot because there is no way of stopping and starting the SELinux subsystem on the fly.</p>
<p style="margin-bottom: 0in;">Digging into the SELinux logs, I figure out that Half Life 2 needs execheap which is prohibited by SELinux by default. Okay, I do not like the idea of allowing execheap but</p>
<pre class="brush: bash">setsebool -P allow_execheap 1
</pre>
<p style="margin-bottom: 0in;">did the trick and music was running.</p>
<p style="margin-bottom: 0in;">In the end, I have not yet played one minute of Half Life 2 so far but had some fun in making it fly :)</p>
<p style="margin-bottom: 0in;">- Dennis</p></div></div><div class="element element-textarea first last">
<div><p style="margin-bottom: 0in;"><span style="line-height: 1.3em;">Every 12 to 24 month I have the sudden desire to play a video game and today was one of these days. As I am back on Linux with Windows only running in a virtual machine, I fired up Google to get me up to speed regarding gaming on Linux.</span></p>
<p style="margin-bottom: 0in;">Of course, I stumbled across Steam for Linux and directly installed it because I thought this will be pain free - I still remember my days running SuSE back in 2002 trying to get <em>Jagged Alliance 2</em> to run.</p>
<pre class="brush: bash"> cd /etc/yum.repos.d/
wget http://spot.fedorapeople.org/steam/steam.repo
yum install steam
</pre>
<p style="margin-bottom: 0in;">After these three commands I fired up steam and directly purchased Half Life 2 for 8 € - I have learned in life to not spend much money on games because my gaming desire normally ceases after 2 hours. Downloading 2 GB and automatic installation of Half Life 2 being successful I was able to start the game. But directly in the main menu I noticed that everything was rendered without any textures. On a side note: I can just advise to start steam from a console so that you get all the Debug / Developer output for digging around.</p>
<p style="margin-bottom: 0in;">I figured out that the hardware decompression of the textures did not work and that I needed S3TC with DRI drives which is provided by the package libtxc_dxtn.</p>
<p style="margin-bottom: 0in;"> </p>
<pre class="brush: bash"> rpm -qa | grep libtxc
yum install libtxc_dxtn.i686 libtxc_dxtn.x86_64
</pre>
<p style="margin-bottom: 0in;"> </p>
<p style="margin-bottom: 0in;">Line one checks if the package has already been installed and the second line installs the 32- and 64-Bit version because I am not sure if Half Life / steam is 32- or 64 Bit .</p>
<p style="margin-bottom: 0in;">Starting Half Life 2 again proofed my theory and I had polygons with textures.</p>
<p style="margin-bottom: 0in;">When starting the actual game, I noticed the missing sounds &amp; music. Back to digging in the logs, gave the following hints:</p>
<p style="margin-bottom: 0in;"> </p>
<pre class="brush: bash">Warning: MP3 decoder has failed to start. Most likely SELinux is disabling JITing?
SDLAUDIO: SDL_InitSubSystem(SDL_INIT_AUDIO) failed:
maxplayers set to 1
</pre>
<p style="margin-bottom: 0in;"> </p>
<p style="margin-bottom: 0in;">Okay, line 1 maybe a good hint. Before, re-configuring SELinux and crawling through SELinux logs, I deactivated SELinux completely for test purposes by changing the line in <em>/etc/selinux/config</em> from</p>
<p style="margin-bottom: 0in;"><em> SELINUX=enforcing</em></p>
<p style="margin-bottom: 0in;">to</p>
<p style="margin-bottom: 0in;"><em> SELINUX=disabled</em></p>
<p style="margin-bottom: 0in;">and after a reboot I could hear music in Half Life 2. As SELinux serves an important purpose, I activated it again and reboot because there is no way of stopping and starting the SELinux subsystem on the fly.</p>
<p style="margin-bottom: 0in;">Digging into the SELinux logs, I figure out that Half Life 2 needs execheap which is prohibited by SELinux by default. Okay, I do not like the idea of allowing execheap but</p>
<pre class="brush: bash">setsebool -P allow_execheap 1
</pre>
<p style="margin-bottom: 0in;">did the trick and music was running.</p>
<p style="margin-bottom: 0in;">In the end, I have not yet played one minute of Half Life 2 so far but had some fun in making it fly :)</p>
<p style="margin-bottom: 0in;">- Dennis</p></div></div>New Photos - Nature2013-08-10T20:27:06+00:002013-08-10T20:27:06+00:00http://batland.de/v4.1/index.php/batblog1/item/new-photos-natureSuper User<div class="element element-textarea first last">
<div><p>One of my first shots with my new Canon EOS 7D - a wonderful dragonfly (<a href="http://batland.de/v4.1/index.php/bat-s-photos/event/Nature" target="_self">All my released nature photos</a>).</p>
<p><a href="http://batland.de/v4.1/index.php/bat-s-photos/singleimage/Nature/IMG_1309-JPG/" target="_self"><img src="http://batland.de/v4.1/components/com_eventgallery/helpers/image.php?option=com_eventgallery&amp;mode=full&amp;view=resizeimage&amp;folder=Nature&amp;file=IMG_1309.JPG" width="1440" height="960" /></a></p>
<p><a href="http://batland.de/v4.1/index.php/bat-s-photos/singleimage/Nature/IMG_1297-JPG/" target="_self"><img src="http://batland.de/v4.1/components/com_eventgallery/helpers/image.php?option=com_eventgallery&amp;mode=full&amp;view=resizeimage&amp;folder=Nature&amp;file=IMG_1297.JPG" width="1440" height="960" /></a></p>
<p>- Dennis</p></div></div><div class="element element-textarea first last">
<div><p>One of my first shots with my new Canon EOS 7D - a wonderful dragonfly (<a href="http://batland.de/v4.1/index.php/bat-s-photos/event/Nature" target="_self">All my released nature photos</a>).</p>
<p><a href="http://batland.de/v4.1/index.php/bat-s-photos/singleimage/Nature/IMG_1309-JPG/" target="_self"><img src="http://batland.de/v4.1/components/com_eventgallery/helpers/image.php?option=com_eventgallery&amp;mode=full&amp;view=resizeimage&amp;folder=Nature&amp;file=IMG_1309.JPG" width="1440" height="960" /></a></p>
<p><a href="http://batland.de/v4.1/index.php/bat-s-photos/singleimage/Nature/IMG_1297-JPG/" target="_self"><img src="http://batland.de/v4.1/components/com_eventgallery/helpers/image.php?option=com_eventgallery&amp;mode=full&amp;view=resizeimage&amp;folder=Nature&amp;file=IMG_1297.JPG" width="1440" height="960" /></a></p>
<p>- Dennis</p></div></div>